<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>绘制圆形</title>
</head>
<body>
    <script>
        xtc.moveTo(0,0)
        ctx.lineTo(300,200)
        ctx.stroke();
        ctx.font = '60px  微软雅黑';
        ctx.fillText('V3PNC',50,120)
    </script>
</body>
</html>